Multipath provisioning for survivable elastic optical networks with optimized RSA ordering selection

Dinarte, Henrique A.; Teixeira, Gonçalo; Almeida, Raul C.; Assis, K. D. R.; Waldman, Hélio; Chaves, Daniel A. R.

doi:10.1109/icton59386.2023.10207551

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The proposed RSA applies the protection scheme to deal with the survivability of EONs under static traffic. Dinarte et al [ 18 ] proposed a scheme that uses a genetic algorithm to optimize RSA ordering selection for each source–destination node pair. They introduced the Hybrid Partitioning Dedicated Path Protection (HPDPP) algorithm for resilient connection establishment with optimized R-SA or SA-R policy selection.…”

Section: Related Workmentioning

confidence: 99%

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Enhancing the Efficiency of Resilient Multipath-Routed Elastic Optical Networks: A Novel Approach for Coexisting Protected and Unprotected Services with Idle Slot Reuse

Cavalcanti,

Teixeira,

Dinarte

et al. 2024

Sensors

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In this paper, we investigate a scenario in which protected and unprotected services coexist in an elastic optical network under dynamic traffic. In the investigated scenario, unprotected services can reuse the reserved idle bandwidth to provide protection to the protected services. Under this scenario, we propose a new heuristic algorithm that enables such reuse as well as define and introduce a new assignment problem in elastic optical networks, named a Transmission Spectrum Assignment (T-SA) problem. In this paper, we consider a scenario in which services may be routed using the multipath routing approach. Additionally, protection using bandwidth squeezing is also considered. We assess our proposal through simulations on three different network topologies and compare our proposal against the classical protection approach, in which bandwidth reuse is not allowed. For the simulated range of network loads, the maximum (minimum) blocking probability reduction obtained by our proposal is approximately 48% (10%) in the European topology, 46% (7%) in the NSFNET topology, and 32% (6%) in the German topology.

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Section: Related Workmentioning

confidence: 99%

“…SimEON is an open-source simulator capable of simulating the required EON characteristics relevant to the present study. SimEON and its extensions have been used and validated as a simulation engine in many works in the literature [18,25,26]. Call requests are established through a unidirectional circuit-switched lightpath.…”

Section: Simulation Setupmentioning

confidence: 99%

Enhancing the Efficiency of Resilient Multipath-Routed Elastic Optical Networks: A Novel Approach for Coexisting Protected and Unprotected Services with Idle Slot Reuse

Cavalcanti,

Teixeira,

Dinarte

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks

Adépo,

Anoh,

Vangah

2023

OJAppS

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The major challenge in elastic optical networks is to determine the path of a connection and to allocate spectral resources on the links of this path. This problem consists of two sub-problems, routing and spectrum allocation. In the literature, these sub-problems are solved with a predefined order for all topology node pairs. Recent work proposes hybrid resolution algorithms based on connection demand and network state to provide a solution to these problems. However, the blocking rate of new connection requests has become problematic. In this work, we propose a hybrid routing and spectrum assignment policy to improve blocking rate of new connection requests. The proposed solution consists to change the routing policy of a pair node if the connection request is blocked. This algorithm improves the blocking rate of new connection requests.

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Multipath provisioning for survivable elastic optical networks with optimized RSA ordering selection

Cited by 2 publications

References 13 publications

Enhancing the Efficiency of Resilient Multipath-Routed Elastic Optical Networks: A Novel Approach for Coexisting Protected and Unprotected Services with Idle Slot Reuse

Enhancing the Efficiency of Resilient Multipath-Routed Elastic Optical Networks: A Novel Approach for Coexisting Protected and Unprotected Services with Idle Slot Reuse

Hybrid Policy of Routing and Spectrum Assignment in Elastic Optical Networks

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